Pks-digiplan sd2 driver IC help please

[asto]

Just a stab?

TIP32C-PKS

TIP32C-PKS - SEMILAB - Ashlea Components


PS

Just noticed their telephone number is a Swindon one?

You know Swarfing, that was a hit.
This morning I attached three wires on the board in place of removed transistor and at the other end a triple female socket. Then started playing with several types of transistors that I'd found handy and guess what... The one that made the SD2 play music again was the TIP145. So the TIP32-C is the closest equivalent as its collector current is 3Amps while the TIP145 is Ic=10Amps.
I think the supplier's location is...518, Purley Way, Croydon, CR0 4RE
Conclusion...Very few things may remain unidentified in this forum.
I am glad I've joined.


Thanks!

Ps. I wish to thank Irving as well for helping me to narrow my search_Sorry for any syntax errors.

[asto]

Well... i2i,
I only have machines driven by SD2's. So, both pictures are from the SD2 drive. What you see in the 2nd image is the component side of the PCB which is visible_ copper side_(well that's o.k double sided board) in the first photo.

cheers

[asto]

Thanks John S!

[i2i]

Well... i2i,
I only have machines driven by SD2's. So, both pictures are from the SD2 drive. What you see in the 2nd image is the component side of the PCB which is visible_ copper side_(well that's o.k double sided board) in the first photo.

cheers

that is a wierd one then, as i have an sd2 and a cd20 in front of me and the second pic looks exactly like the cd20. But not to worry, i'm glad you've identified the component. I spoke to parker today regarding a schematic, and they put me onto a company that may be able to help.

[Swarfing]

Asto

Glad you got somewhere with it.

[asto]

Asto

Glad you got somewhere with it.

Swarfing, how did you manage to get to the TIP32C which is the best replacement without real data of the old transistor. Because PKS0320 is not a valid code for this part. I did not know this when I started this thread.

It is printed on the old transistor but it has to be something like irving said. This code does not belong to any known transistor family.
Anyway my SD2 drive is alive again and runs fine.

Now I have to see how much hope do I have to fix the problem for my x-axis stepper motor losing direction.

cheers

Asto

[Swarfing]

I used to work for motorola in a past life. It was common for them to disguise parts like Irving said. They would always use part of the original data in the name though so it was just a case of searching using PKS and 32.

[asto]

I used to work for motorola in a past life. It was common for them to disguise parts like Irving said. They would always use part of the original data in the name though so it was just a case of searching using PKS and 32.

This isn't a drive question but, again this module(Parajust single to three phase inverter) carries coding which is not common for TO-3 Motorola transistors.

cheers

[asto]

...i2i trust me. What you see in the second picture is what I took out from the SD2.
If a similar PKS-DIGIPLAN called cd20 exists I totally disregard. But this is my chance so please educate me.
How many Amps drive is that cd20 capable to deliver. Probably the machine you took this from is a more powerful one compared to the little Orac.
And this was not the first time the SD2 needed to be dismantled for fixing. In the past, it blew a 40xxx series CMOS. The CD40106.
But today it looks a bit different because I have added DIP sockets for every single chip. and the appropriate sockets for transistor or diode in the PC boards.

cheers

Asto

[asto]

Unbelievable!

I do not know many people capable of finding this without data.

I am not an experienced service person but I like dealing with stuff like that.
Saves money as well.

kind regards Swarfing!

ps I hope to see you in my next thread starting tonight.